RN300-MT AS120-D.
CWC RN AUTO DIVER WITH DATE, MK.2.

This genuine Cabot Watch Company RN Divers automatic divers' watch has been made to exacting MOD specs but with the added date function. The non-date version was issue for approximately a year and superseded the Rolex submariner auto in the early 80s. It was then superseded by the Cabot Watch Company RN quartz divers' watch. Sellita SW200-1 top hrade Swiss automatic movement, Swiss Made and assembled in Switzerland. Fixed strap bars. Water resistant to 300m.
Weight (without strap): 78g

(Please note, the picture of the case back is for reference only; exact serial number and dates may differ between batches.)